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Mine Exploration Forum

Author More Cornish subsidence
Roy Morton

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Joined: 09/10/2007
Location: Redruth Cornwall

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More Cornish subsidence
Posted: 05/10/2020 23:21:55
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Passing a factory on Barncoose industrial estate and noticed a small fence surrounding a hole in the grass verge.
The position of this coincides very neatly to the strike of series of old back workings which were uncovered when we were conducting site investigations on a plot across the road.
A preliminary search in the records office, showed no recorded mining at this location, so we were surprised to see what we did.
Barncoose mine and its adit system is far enough away to be unrelated.
It's strange it should turn up in the same month that we uncovered what we did, albeit 29 years later Shocked
This is the site of the subsidence noticed a few days ago



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This shot from October 1991 shows the strike of the workings
and the factory in the background were the latest feature has appeared



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This picture was taken as close as we were allowed to go (5M short of the road)
The handsome young dude in the shot is yours truly Roll Eyes



(click image to open full size image in new window)

--

"You Chinese think of everything!" "But I''m not Chinese!" "Then you must have forgotten something!"
IP: 109.145.86.168 Edited: 05/10/2020 23:24:28 by Roy Morton
Down and beyond

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Joined: 16/03/2019
Location: Northamptonshire

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More Cornish subsidence
Posted: 06/10/2020 07:43:42
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Very interesting to read, they are still trying to get permission here to fill up the mines but how large and vast they are I think nothing will ever come of it , they have built a hole housing estate around one as a U shape the lines of the U are the houses and the holo middle of the U is a nature reserve / grass area. The site of the double track main entrance it once was the water drains out of this to lagoons I have heard of previous subsidence issues in the area , it also goes under the main roads I think 8/9’times , just shows what can happen

--

From the land of the pillar and stall
IP: 176.252.118.34
Roy Morton

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Joined: 09/10/2007
Location: Redruth Cornwall

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More Cornish subsidence
Posted: 06/10/2020 13:33:02
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I’m guessing here that the council will send a gaggle of guys in white hats and hi viz to stand around it for a few hours, then get a couple of guys to fill it with scalpings and call it done.
Seen it so many times Crying

--

"You Chinese think of everything!" "But I''m not Chinese!" "Then you must have forgotten something!"
IP: 109.145.86.168
Down and beyond

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Posted: 06/10/2020 13:37:27
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I have to admit I would be so inclined to stick my head under that fence and photo down the hole I couldn’t help myself ! , I am far from Experienced in this subject but I guess it needs to be a material that will let water pass through ? Because if it didn’t could cause a large backlog of water which would cause more serious issues ?

Is this the only one you have seen or is it quite common ?

--

From the land of the pillar and stall
IP: 82.132.231.36
royfellows

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Joined: 13/06/2007
Location: Great Wyrley near Walsall

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Posted: 06/10/2020 13:50:08
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In 2003 the car park at Tesco St Ives went.

I got a first hand account.

It was chucking it down and someone ran into the store asking for the manager. Asked what they wanted they replied to "Look outside". A large section of the car park had visibly dropped and the rainwater pouring into an every increasing size hole. They called for everyone to get their cars off the car park.

I believe that this was successfully done and eventually when all was settled they were left with a large crater 30 feet deep.
Apparently not a shaft but lode backs.
All this I was told.

--

'' as rare as a Cwmystwyth padlock''
IP: 88.108.13.63 Edited: 06/10/2020 13:51:38 by royfellows
royfellows

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Posted: 06/10/2020 13:58:49
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Here


(click image to open full size image in new window)

--

'' as rare as a Cwmystwyth padlock''
IP: 88.108.13.63
Down and beyond

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Posted: 06/10/2020 14:03:21
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Wow that’s serious ! I have seen similar on YouTube documentaries on sink holes over at America scary things ! I remember one ate a Porsche dealership

--

From the land of the pillar and stall
IP: 82.132.231.36
royfellows

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Posted: 06/10/2020 14:06:56
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I was told one guy was determined to save his pride and joy and leapt into it as the ground was going. Car lurched backwards as the clutch bit and with spinning types he was out. A bit like the 2005 "War of the Worlds" if you have seen it.

EDIT Its everywhere. Near me at an eater in Rushall, again pouring rain, car park went an a Ford Fiesta ended up sticking upright in the air. Was in local papers.

--

'' as rare as a Cwmystwyth padlock''
IP: 88.108.13.63 Edited: 06/10/2020 14:08:58 by royfellows
alex17595

Joined: 05/01/2018

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Posted: 06/10/2020 14:22:09
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A few years ago I was doing some work on the railway near Bloxwich. Some of the access compound collapsed into some sort of hole, I assume it was an old coal mine.

After that most the work got cancelled so I sat around for 2 weeks with nothing to do Big Grin
IP: 81.151.23.115
sinker

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Joined: 13/12/2010
Location: North Wales.

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Posted: 06/10/2020 14:26:23
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royfellows wrote:



EDIT Its everywhere. Near me at an eater in Rushall, again pouring rain, car park went an a Ford Fiesta ended up sticking upright in the air. Was in local papers.



Yes, Church Walks jcn with Mostyn Street in Llandudno, 1987, taxi and a milk float down a stope. Messy.




--

Yma O Hyd....
IP: 148.252.133.54
royfellows

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Posted: 06/10/2020 14:40:08
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alex17595 wrote:

A few years ago I was doing some work on the railway near Bloxwich. Some of the access compound collapsed into some sort of hole, I assume it was an old coal mine.

After that most the work got cancelled so I sat around for 2 weeks with nothing to do Big Grin


Could answer your question, railway top right.



(click image to open full size image in new window)

--

'' as rare as a Cwmystwyth padlock''
IP: 88.108.13.63
lozz

Joined: 03/08/2012
Location: Cornwall

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Posted: 06/10/2020 14:41:05
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royfellows wrote:

Here


(click image to open full size image in new window)


Woz Somerfield's...Mrs worked in that Tesco store, I remember the car park collapse, had to park down the road when picking her up from work.

Lozz.
IP: 86.179.166.3
alex17595

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Posted: 06/10/2020 15:10:10
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royfellows wrote:

alex17595 wrote:

A few years ago I was doing some work on the railway near Bloxwich. Some of the access compound collapsed into some sort of hole, I assume it was an old coal mine.

After that most the work got cancelled so I sat around for 2 weeks with nothing to do Big Grin


Could answer your question, railway top right.



(click image to open full size image in new window)


I had a look on NLS maps, it's right where the sidings are at the original bloxwich stn. There's an old shaft marked on the opposite side of what is now Croxstalls Rd.
IP: 81.151.23.115
Roy Morton

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Location: Redruth Cornwall

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Posted: 06/10/2020 18:14:16
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The same thing every year. We get a reasonably dry run of weather and then a guts of rain and everything wants to head for the centre of the earth.
Not surprising really, just physics and geology.

--

"You Chinese think of everything!" "But I''m not Chinese!" "Then you must have forgotten something!"
IP: 109.145.86.168
royfellows

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Posted: 06/10/2020 20:07:11
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Cant you put up some of your exciting pics. I know you have them.

You know, "Journey to the centre of the earth" in a £500K bungalow.

--

'' as rare as a Cwmystwyth padlock''
IP: 88.108.13.63
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